6. PROPERTY, PLANT AND EQUIPMENT (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended	12 Months Ended
	Mar. 31, 2013	Dec. 31, 2012
Property, Plant and Equipment [Line Items]
Land	$ 1,582	$ 1,582
Buildings and improvements	1,555	1,555
Leasehold improvements	221	221
Equipment	14,404	14,251
Furniture, computers and office equipment	1,260	1,248
Construction in progress	357	487
Total property, plant and equipment	19,379	19,344
Less: Accumulated depreciation and amortization	(6,616)	(6,241)
Property, plant and equipment,Net	$ 12,763	$ 13,103
Range of Asset lives Land	0 years	0 years
Range of Asset lives construction in progress	0 years	0 years
MaximumMember
Property, Plant and Equipment [Line Items]
Range of asset lives building and improvements	7 years
Range of Asset lives Leasehold improvements	2 years
Range of Asset lives Equipment	2 years
Range of Asset lives furniture, computers and office equipment	2 years
MinimumMember
Property, Plant and Equipment [Line Items]
Range of asset lives building and improvements	36 years
Range of Asset lives Leasehold improvements	5 years
Range of Asset lives Equipment	30 years
Range of Asset lives furniture, computers and office equipment	8 years